LastAdapter.Builder

LastAdapter.kt

class Builder<T : Any> internal constructor(private val list: List<T>, private val variable: Int) {

    private val map: MutableMap<Class<*>, Int> = mutableMapOf()
    private var handler: LayoutHandler? = null
    private var onBind: OnBindListener? = null
    private var onClick: OnClickListener? = null
    private var onLongClick: OnLongClickListener? = null

    inline fun <reified T : Any> map(@LayoutRes layout: Int) = map(T::class.java, layout)
    
    fun map(clazz: Class<*>, @LayoutRes layout: Int) = apply { map.put(clazz, layout) }
    
    fun layoutHandler(layoutHandler: LayoutHandler) = apply { handler = layoutHandler }
    
    fun layout(f: (Any, Int) -> Int) = apply {
        handler = object : LayoutHandler {
            override fun getItemLayout(item: Any, position: Int) = f(item, position)
        }
    }
    
    fun onBindListener(listener: OnBindListener) = apply { onBind = listener }
    
    fun onBind(f: (Any, View, Int) -> Unit) = apply {
        onBind = object : OnBindListener {
            override fun onBind(item: Any, view: View, position: Int) = f(item, view, position)
        }
    }
    
    fun onClickListener(listener: OnClickListener) = apply { onClick = listener }
    
    fun onClick(f: (Any, View, Int) -> Unit) = apply {
        onClick = object : OnClickListener {
            override fun onClick(item: Any, view: View, position: Int) = f(item, view, position)
        }
    }
    
    fun onLongClickListener(listener: OnLongClickListener) = apply { onLongClick = listener }
    
    fun onLongClick(f: (Any, View, Int) -> Unit) = apply {
        onLongClick = object : OnLongClickListener {
            override fun onLongClick(item: Any, view: View, position: Int) = f(item, view, position)
        }
    }
    
    fun into(recyclerView: RecyclerView) = build().apply { recyclerView.adapter = this }
    
    fun build() = LastAdapter(list, variable, map, handler, onBind, onClick, onLongClick)

}